← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 571 · 40 questions
TalentJR

The fast method (Keep a running total): Start with the first number. Add the tens of the next number, then its ones. Keep going until the list ends — only one total in your head at a time.

NameDateTime takenScore ___ / 40
  1. 1.71 + 20 + 19 + 39 =
  2. 2.35 + 28 + 49 + 14 =
  3. 3.79 + 56 + 87 + 45 =
  4. 4.18 + 15 + 16 + 16 =
  5. 5.66 + 32 + 60 + 68 =
  6. 6.31 + 25 + 49 + 44 =
  7. 7.61 + 31 + 64 + 14 =
  8. 8.64 + 85 + 85 + 33 =
  9. 9.70 + 38 + 46 + 72 =
  10. 10.48 + 86 + 20 + 62 =
  11. 11.64 + 26 + 87 + 25 =
  12. 12.58 + 23 + 32 + 18 =
  13. 13.14 + 62 + 25 + 83 =
  14. 14.18 + 34 + 34 + 29 =
  15. 15.42 + 66 + 66 + 17 =
  16. 16.30 + 70 + 62 + 71 =
  17. 17.55 + 85 + 78 + 77 =
  18. 18.58 + 43 + 42 + 53 =
  19. 19.15 + 30 + 87 + 53 =
  20. 20.78 + 18 + 48 + 61 =
  21. 21.89 + 53 + 11 + 28 =
  22. 22.48 + 13 + 19 + 84 =
  23. 23.13 + 16 + 38 + 58 =
  24. 24.64 + 37 + 34 + 25 =
  25. 25.12 + 43 + 30 + 31 =
  26. 26.59 + 39 + 81 + 13 =
  27. 27.27 + 87 + 54 + 29 =
  28. 28.30 + 80 + 84 + 13 =
  29. 29.63 + 81 + 86 + 55 =
  30. 30.74 + 52 + 78 + 62 =
  31. 31.33 + 87 + 58 + 48 =
  32. 32.87 + 14 + 41 + 25 =
  33. 33.58 + 24 + 79 + 36 =
  34. 34.52 + 42 + 42 + 21 =
  35. 35.42 + 15 + 18 + 56 =
  36. 36.25 + 28 + 51 + 18 =
  37. 37.83 + 53 + 83 + 77 =
  38. 38.89 + 74 + 40 + 51 =
  39. 39.12 + 49 + 28 + 69 =
  40. 40.68 + 46 + 86 + 18 =

Answer key

  1. 149
  2. 126
  3. 267
  4. 65
  5. 226
  6. 149
  7. 170
  8. 267
  9. 226
  10. 216
  11. 202
  12. 131
  13. 184
  14. 115
  15. 191
  16. 233
  17. 295
  18. 196
  19. 185
  20. 205
  21. 181
  22. 164
  23. 125
  24. 160
  25. 116
  26. 192
  27. 197
  28. 207
  29. 285
  30. 266
  31. 226
  32. 167
  33. 197
  34. 157
  35. 131
  36. 122
  37. 296
  38. 254
  39. 158
  40. 218

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths